One Nation leader Pauline Hanson has confirmed the party will vote in favour of the Turnbull Government’s company tax rate cuts.

Speaking to Sky News, Hanson said the decision came after “a lot of deliberation”.

“I’ve travelled around Australia quite extensively. A couple of weeks ago I was in Western Australia and I went to Fortescue Metals, had a good long talk to Twiggy Forrest, and other businesses I went to through Queensland, plus the other states.

“The whole thing with this is, we need to reduce corporate tax rates, we’re not talking about multinationals, I’m not worried about those, we have to go after them to pay their taxes here, a lot of corporations don’t pay their taxes, but what we need to do is shore up and look after Australian taxes. If we don’t give them relief, what I’m hearing is they’re going to shut up shop.

“They’re either going to shut down or go off-shore. They cannot continue with the escalating energy costs, gas and electricity. They have to have some relief or they’ll put workers off and they’ll start bringing in their families or doing longer hours themselves, we can’t keep going the way that we’re going.”

Her commitment to voting in favour of the government’s plan comes after Labor Senator Doug Cameron accused the federal government and crossbenchers of focusing on the least important issue of the day by pursuing company tax cuts.

The Turnbull government has been rushing to get the bill, which cuts the corporate tax rate from 30 percent to 25 percent, through Parliament this week, the final parliamentary sitting week before the May budget.

"We respect every senator," Mr Turnbull told reporters on Monday, as a vote on the bill was pushed off until at least Tuesday.

"We need nine of the crossbench senators to vote for legislation if Labor and the Greens are opposing it, so we continue our very respectful negotiations."

The government had been negotiating with independent senators Derryn Hinch and Tim Storer.

Meanwhile, an international tax expert has warned Australia is ill-prepared to deal with the global implications if the cuts don't pass parliament.

In a report prepared for the Minerals Council of Australia, the University of Calgary's Jack Mintz says Australia will lose investment and jobs to lower-taxed countries.

"The report also makes the point that lower company taxes allow higher compensation to be paid to workers and lower prices for consumer goods," the Minerals Council's interim chief executive David Byers said.

"The rest of the world is not stupid. Company taxes are coming down," he said.

Opposition Leader Bill Shorten said Mr Turnbull was planning to give big businesses a tax handout while hitting Australian workers with a Medicare levy increase.